Key parameters at a glance
- A radius of 16.70 Earth radii
- A mass of 327.35 Earth masses
- Surface gravity around 1.17 g
- An orbital period of 1.509 days
- Semi-major axis 0.0275 AU
- Equilibrium temperature 1,898 K (1625 °C)
- Distance from Earth 2,569.81 light-years
- Earth Similarity Index 0.055
- Travel time at Voyager 1 speed 45,318,641 years
CoRoT-1 b Planet Profile
Physical Specs
Classification
Planet Type
Gas Giant
Discovery
Size rank in cohort
Rank by radius
#123of 1771
top 6.9%
This planet
16.70R⊕
Gas Giant median
13.52R⊕
Nearest-size peers
| Metric | Earth | CoRoT-1 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 16.70 | 11.21 |
| Mass (M⊕) | 1.00 | 327.35 | 317.83 |
| Density (g/cm³) | 5.51 | 0.38 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.17 | 2.53 |
| Insolation (S⊕) | 1.00 | 2,852.63 | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Best measured mass | 327.350 M⊕ | Direct mass measurement (not derived). |
Star Catalogue Identifiers
TIC
TIC 36352297
Gaia DR2
Gaia DR2 3105507886130792448
Gaia DR3
Gaia DR3 3105507886130792448
System
CoRoT-1
Percentile among Gas Giant cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 1.51 Earth days (0.4% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0275 AU.
Transit Fingerprint
Depth
1.927 %
Duration
2.373 h
Impact parameter b
0.350
Rp / R★
0.138800
Transit midpoint (BJD)
2,454,159.4532
Photometric dip
Transit produces a flux drop of 19,265 ppm lasting ≈ 2.37 h.
Extended Orbital Architecture
Planet / star radius ratio
0.138800
Semi-major axis / stellar radius
4.920
Impact parameter (b)
0.350
RV semi-amplitude (K)
188.000 m/s
Transit mid-time (BJD)
2,454,159.4532
Sky-projected obliquity (λ)
77.00°
Angular separation (arcsec)
0.03490
Eq. Temperature
1,898K
(1625 °C)
Insolation (S⊕)
2,852.63
Earth = 1.00
Earth Similarity (ESI)
0.055
0 = alien, 1 = Earth-identical
Inside the inner HZ boundary (too hot for liquid water) — the dayside is scorched.
Detection Signatures
Transit photometry
A transit dip has been observed from at least one telescope.
Radial velocity
Stellar wobble has been measured spectroscopically.
Orbital-brightness modulation
Host star brightness varies with the planet's orbit.
Discovery Paper
Primary reference
Barge et al. 2008Instrument
CoRoT CCD Array
Publication
2008-05
Observation locale
Space
Discovery cohort
Planets confirmed in 2008 at CoRoT (3 shown).
Host System: CoRoT-1
Spectral Class
G-type yellow (Sun-like)
Effective Temperature
5,950 K — hotter than the Sun (5,778 K)
Estimated Age
1.60 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
1.110 R☉
Stellar Mass
0.950 M☉
Metallicity [Fe/H]
-0.30
Extended Stellar Properties
Surface gravity (log g)
4.250 dex
Stellar density
0.930 g/cm³
Systemic radial velocity
23.35 km/s
Rotational v·sin i
5.20 km/s
Metallicity ratio
[M/H]
Multi-band Host Photometry — 11 bands
Astrometric Data
Parallax
1.242 mas
Total Proper Motion
6.039 mas/yr
PM Right Ascension
-6.01 mas/yr
PM Declination
0.55 mas/yr
Galactic Cartesian (pc)
x = -0.209 · y = 0.976 · z = -0.054
Equatorial (J2000)
RA 102.07986° · Dec -3.10214°
Galactic ℓ, b
215.339° · -2.107°
Ecliptic λ, β
103.438° · -25.980°
HTM-20 index
1768351601
Observation Record
Photometric series
6
RV measurements
1
Transmission spectra
6
Emission spectra
9
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